docker Archives - Page 13 of 24

Get environment variable value in Dockerfile

I’m building a container for a ruby app. My app’s configuration is contained within environment variables (loaded inside the app with dotenv). One ...

May 14, 2022
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How do you list volumes in docker containers?

When using docker images from registries, I often need to see the volumes created by the image’s containers. Note: I’m using docker version ...

May 14, 2022
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Confused about Docker -t option to Allocate a pseudo-TTY

What exactly does this option do? I’ve been reading a lot on TTY and I’m still confused. I played around without having the ...

May 14, 2022
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How to share my Docker-Image without using the Docker-Hub?

I’m wondering where Docker’s images are exactly stored to in my local host machine. Can I share my Docker-Image without using the Docker-Hub ...

May 14, 2022
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How to create named and latest tag in Docker?

Supposed I have an image that I want to tag as 0.10.24 (in my case it’s an image containing Node.js 0.10.24). I built ...

May 14, 2022
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How to persist data in a dockerized postgres database using volumes

My docker compose file has three containers, web, nginx, and postgres. Postgres looks like this: postgres: container_name: postgres restart: always image: postgres:latest volumes: ...

May 14, 2022
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Docker: adding a file from a parent directory

In my Dockerfile I’ve got : ADD ../../myapp.war /opt/tomcat7/webapps/ That file exists as ls ../../myapp.war returns me the correct file but when I ...

May 14, 2022
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What is the difference between docker and docker-compose

docker and docker-compose seem to be interacting with the same dockerFile, what is the difference between the two tools? 4 Answers 4

May 13, 2022
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How can I list all tags for a Docker image on a remote registry?

How can I list all tags of a Docker image on a remote Docker registry using the CLI (preferred) or curl? Preferably without ...

May 13, 2022
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In Docker, what’s the difference between a container and an image? [duplicate]

This question already has answers here: What is the difference between a Docker image and a container? (30 answers) Closed 3 years ago. ...

May 13, 2022
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